Synthesis of pyridone-substituted furan-2(5H)-ones and their intramolecular cyclization to afford furo[3,4-f]isoquinolines
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DOI: 10.1007/s10593-019-02608-0
Abstract: Synthetic approach toward pyridone-substituted furan-2(5H)-ones has been described. Intramolecular cyclization of these compounds leads to novel 7-substituted furo[3,4-f]isoquinolines in moderate to high yields. read more here.
Keywords: intramolecular cyclization; substituted furan; pyridone substituted; furan ones ... See more keywords
Reactions of alkyl 4-hydroxybut-2-ynoates with arenes under superelectrophilic activation with triflic acid or HUSY zeolite: Alternative propargylation or allenylation of arenes, and synthesis of furan-2-ones
Sign Up to like & getrecommendations! Published in 2019 at "Tetrahedron"
DOI: 10.1016/j.tet.2019.130517
Abstract: Abstract Reactions of alkyl 4-aryl(or 4,4-diaryl)-4-hydroxybut-2-ynoates [Ar(H or Ar')(OH)C4–C3≡C2–CO2Alk] with arenes under the action of triflic acid TfOH or HUSY zeolite result in the formation of two main compounds, aryl substituted furan-2-ones or products of… read more here.
Keywords: triflic acid; husy zeolite; furan ones; hydroxybut ynoates ... See more keywords
A Highly Flexible Green Synthesis of 3,4,5-Substituted Furan-2(5H)-ones Using Nano-CdZr4(PO4)6 as Catalyst under Microwave Irradiation
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DOI: 10.1080/10406638.2015.1129975
Abstract: ABSTRACT A concise and efficient method for the synthesis of 3,4,5-substituted furan-2 (5H)-ones was achieved through a three-component reaction of amines, dialkyl acetylene dicarboxylate, and aromatic aldehydes using nano-CdZr4(PO4)6 as catalyst under microwave irradiation. This… read more here.
Keywords: using nano; substituted furan; synthesis substituted; furan ones ... See more keywords
Recyclization of 3-(Thiophen-2-yl)imino-3H-furan-2-ones under the Action of Cyanoacetic Acid Derivatives
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DOI: 10.1134/s1070363220050084
Abstract: The recyclization of 2-{[5-aryl-2-oxofuran-3(2H)-ylidene]amino}thiophene-3-carboxylic acids with cyano-acetic acid derivatives in the presence of t-BuOK afforded potassium 1-cyano-3-{[5-R1-4-R2-3-(ethoxycarbonyl)-thiophen-2-yl]amino}-1-R3-5-oxo-5-arylpenta-1,3-dien-2-olates. read more here.
Keywords: imino furan; thiophen imino; acid derivatives; recyclization thiophen ... See more keywords
Synthesis of New Substituted 3-(Thien-2-yl)imino-3H-furan-2-ones
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DOI: 10.1134/s1070363220060031
Abstract: The intramolecular cyclization of substituted 4-oxo-4-(het)aryl-2-(thiophen-2-ylamino)but-2-enoic acids in the presence of acetic or propionic anhydride afforded a series novel substituted 3-(thien-2-yl)iminofuran-2(3H)-ones. read more here.
Keywords: imino furan; synthesis new; thien imino; substituted thien ... See more keywords
An efficient synthesis of naphtho[2,1-b]furan-2(1H)-ones catalysed by Nafion-H supported on silica-coated super paramagnetic iron oxide nanoparticles
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DOI: 10.3184/174751917x14967701767012
Abstract: A one-pot procedure is descibed for the synthesis of naphtho[2,1-b]furan-2(1H)-ones via a multicomponent reaction of aryl aldehydes, hippuric acid, acetic anhydride and β-naphthol in the presence of Nafion-H supported on silica-coated superparamagnetic iron oxide nanoparticles… read more here.
Keywords: silica coated; supported silica; synthesis naphtho; nafion supported ... See more keywords